If RS = 23 – 2x, ST = 9x – 5, and RT = 39, find RS

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Enter the missing numbers in the boxes to complete the table of equivalent ratios. time (min) distance (km)? 36 9? 1512 ?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need